According to Mark Cuban, becoming a billionaire is better. And it's not even close.

On a podcast, James Altucher asked Cuban to rank the feeling of selling his first company to become a millionaire with the feeling of becoming a billionaire when his next big company's stock went nuts.

"The billion by far," Cuban said, laughing.

"The million was fun, because it was a drinking million, it was, 'On my god, I'm going to love this, my life has changed, but I got to keep on working because I haven't hit my goals yet, and there's so much more I want to do," he said.

"The billion was, 'I can't f---ing believe it.' Literally, I was sitting in front of a computer, naked, hitting the refresh because we were close — waiting until my net worth hit that billion when the stock price got to a certain point, and then I kinda screamed and jumped around and then got dressed."